quoits

Concise Oxford English Dictionary © 2008 Oxford University Press:
quoit /kɔɪt, kwɔɪt/

▶noun

• 1 a ring of iron, rope, or rubber thrown in a game to encircle or land as near as possible to an upright peg.

  ■ (quoits) [treated as sing.] a game of aiming and throwing quoits.

• 2 the flat covering stone of a dolmen.

  ■ a dolmen.

• 3 Austral. informal a person's buttocks.

▶verb archaic throw like a quoit.

– origin ME: prob. of Fr. origin.